Real-Time Windows Target

Plotting Logged Signal Data

You can use the MATLAB plotting functions for visualization of your nonreal-time simulated data or your real-time executed data.

After running your real-time application and logging data to a disk drive, you can plot the data. This procedure uses the Simulink model rtwin_model.mdl as an example, and assumes you saved your data to the variable ScopeData:

1. In the MATLAB command window, type

ScopeData

MATLAB lists the structure of the variable ScopeData. The variable ScopeData is a MATLAB structure containing the fields time vector, signal structure, and a string containing the block name.

ScopeData = 
            time: [10000x1 double]
      signals: [1x1 struct]
    blockName: 'rtwin_model/Scope'

2. To list the MAT-files saved to your disk drive, type

dir *.mat

MATLAB displays the MAT-files in your current working directory.

data_0.mat

3. To clear the MATLAB workspace and load the scope data, type

clear
load data_0
who

MATLAB displays

Your variables are:
ScopeData_0

4. To plot the first 1000 points, type

plot(ScopeData_0.time(1:1000),ScopeData_0.signals.values(1:1000)
)

MATLAB plots the first 1000 samples from 0.0000 to 0.9990 second.

Entering Data Archiving Parameters

Parameter Tuning